National Council for Science and the Environment (NSCE)
NCSE’s Campus to Careers Program is dedicated to providing environmentally-motivated students with the tools necessary to pursue careers in the non-profit, governmental and private sectors.
As an extension of the Campus to Careers mission, NCSE has created the environmental internship clearinghouse with support from the UPS Foundation. The clearinghouse enables university students to search for internships in the environmental field and provides a forum for internship providers to tap into a solid community of quality applicants.
The site is frequently updated with internship opportunities.
Look under "Recent Postings: on the following website to find and apply to internships: https://www.ncseglobal.org/